Explore more about testing specifications, such as insertion loss, return loss, and uniformity, to identify the quality of fiber optic splitters.

How to Test the Quality of Fiber Optic Splitter?

Fiber optic splitters play an integral role in distributing optical signals in fiber optic networks. They contain multiple output and input ends. Whenever a network's light transmission needs to be divided, fiber optic splitters are implemented for network interconnection convenience.

Regular, thorough quality testing by network technicians and operators is important to ensure optimal performance and identify any potential issues, so proactive measures can be taken to maintain the reliability and efficiency of the network.

The quality of fiber optic splitters is generally determined by certain set specifications, such as insertion loss, uniformity, directivity, polarization-dependent loss, return loss, and more. Seasoned professionals at Fibermart share some expert insights into the key techniques involved in testing the quality of a fiber optic splitter.

Testing the Quality of Fiber Optic Splitters 

Visual Inspection

One of the most convenient ways to test the quality of a fiber optic splitter is to examine it for chips, cracks, loose connectors, or other physical damage. Make sure the connectors are properly aligned, clean, and attached securely.

In some cases, adjusting the splitter's connectors or realigning the fibers can restore proper power distribution. However, identify and address any visible defects before proceeding further.

Insertion Loss Measurement

Insertion loss refers to power loss occurring when the optical signal passes through the splitter. Measuring insertion loss is important because it directly impacts the signal strength and overall network performance.

Insertion loss can be tested using a power meter and a light source. It's measured by comparing the power levels at the input and output ports. Insertion loss must be within the specified range provided by the splitter manufacturer. Lower insertion loss values indicate high splitter performance and zero signal degradation.

Uniformity Measurement

Splitting imbalance, splitting ratio, or uniformity refer to the power distribution balance across the splitter's output ports. Imbalanced splitters lead to unequal signal distribution, resulting in network performance issues.

The uniformity can be determined by viewing results from the insertion loss test to ensure the difference between the lowest and highest loss is within an acceptable uniformity value. The value must be as close to zero as possible, as deviations suggest an imbalance that can lead to performance issues and signal degradation within the network.

Return Loss Measurement

Return loss refers to the amount of light reflected back toward the source because of splitter imperfections or mismatches. High return loss can result in impaired and reflected signals. It can be tested by connecting the splitter's input port to a return loss meter and the output ports to a non-reflective index-matching gel. Ensuring the measured return loss falls within the specified range is important, as only high return loss indicates low reflections and good-quality signals.

Polarization Dependent Loss

PDL is a parameter for measuring the difference in insertion loss between different light polarizations passing through the splitter. High Polarization Dependent Loss can affect network performance, causing signal distortion.

PDL can be calculated by comparing the power levels of the two polarizations. High PDL values indicate signal inconsistency and poor splitter performance. Ensure that the measured PDL falls within the acceptable range specified by the manufacturer.

Environmental and Temperature Testing

Fiber optic splitters could be sensitive to environmental conditions and temperature changes. It's advisable to test splitters under different environmental scenarios, and temperature ranges to identify their performance and stability. Monitor uniformity, PDL, return loss, and insertion loss at different environmental and temperature conditions to detect potential inconsistencies and variations.

Regular testing and maintenance of splitters provide efficient and reliable distribution of signals while preventing any potential network degradation. Besides referring to the specifications and guidelines specified by the manufacturer for acceptable performance ranges and accurate testing procedures, ensure the splitter is properly rated for the specific application and meets the required industry standards.

Using high-quality splitters from reputable manufacturers like Fibermart can significantly minimize the risk of imbalance and ensure reliable power distribution and exceptional performance.

We offer high-quality fiber-optic solutions, so you won't have to worry about the consequences of poor-quality components or installation. Call us at (205)-282-9089 to buy premium quality fiber optic products for sale that meet and exceed all industry and compliance standards. As one of the leading wholesalers, Fibermart also offers value-added services such as customization and OEM solutions.

Contact us to learn more or buy fiber patch cables, optical amplifiers, fiber trunk cables, SFP+, QSFP+, and many other products at affordable rates.